Breakdowns in S.19-vaccinated herds.
D000034:Abortion, Veterinary / Q000209:etiology; D000818:Animals; D002004:Brucella Vaccine / Q000009:adverse effects*; D002007:Brucellosis, Bovine / Q000517:prevention & control*; D002417:Cattle; D005260:Female; D011247:Pregnancy
D002004:Brucella Vaccine